JP2503359Y2 - Vehicle wind regulator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a window regulator of a vehicle, and more particularly to a window regulator for reducing a torque shock from a wire to a driving means at the time of driving to open and close a window glass.

[Prior art]

2. Description of the Related Art In recent years, a wire-type window regulator that vertically moves a window glass via a wire by an electric motor has been widely used as a vehicle window regulator.

Usually, the wire type window regulator includes a rail support plate provided substantially outward in the vehicle width direction outside the door inner panel, a guide rail provided on the rail support plate for guiding a window glass, and a rail support plate. A guide member is provided at both upper and lower ends of the rail for guiding the wire connected to the window glass, and a drive mechanism provided on the side of the rail support plate or on the rail support plate. The drive mechanism drives the wire. It is designed to raise and lower the window glass. (See Japanese Utility Model Laid-Open No. 63-143674).

On the other hand, as the drive mechanism, there is also a drive mechanism that reduces the torque shock from the wire to the drive mechanism at the time of opening / closing the window glass and at the time of ending the opening / closing, thereby improving the durability of the drive mechanism.

For example, as shown in FIG. 5, a speed reducer 102 including a worm gear 100 and a worm wheel 101, and a wire 103
A drum 105 that drives the window glass 104 up and down and an electric motor that drives the drum 105 to rotate via the speed reducer 102. The worm wheel 101 and the drum 105 are made of rubber and have a substantially disk-shaped cushioning member. A torque shock from the drum 105 to the speed reducer 102 and the electric motor is reduced by connecting with the 106 and transmitting the rotational force of the worm wheel 101 to the drum 105 via the buffer member 106.

[Problems to be solved by the device]

In the drive mechanism described above, the shock shock from the drum 105 to the speed reducer 102 and the electric motor can be reduced by the shock absorbing member 106, but because the shock absorbing member 106 is provided between the drum 105 and the worm wheel 101, the drive mechanism is increased accordingly. There is a problem that the size of the vehicle in the vehicle width direction becomes large and it becomes difficult to make the door thinner.

An object of the present invention is to provide a vehicle window regulator capable of reducing the torque shock and reducing the thickness of the drive mechanism in the vehicle width direction.

[Means for solving the problem]

A window regulator for a vehicle according to the present invention includes a wire connected to a window glass, a drum for driving the wire to move the window glass up and down, and a worm wheel disposed on one end side in the axial direction of the drum. A window regulator for a vehicle, comprising: a drive unit that rotationally drives a drum via a worm wheel, wherein the worm wheel is elastically deformable in a circumferential direction at a portion on an inner peripheral side of a gear portion on an outer periphery of the worm wheel. An integrally fixed leaf spring member is provided, and the drum is provided with an engaging member that engages with the leaf spring member and transmits the rotational force from the worm wheel to the drum.

[Action]

In the vehicle window regulator according to the present invention, the leaf spring member elastically deformable in the circumferential direction is provided at a portion on the inner circumferential side of the outer circumferential gear portion of the worm wheel,
Since the engaging member provided on the drum is engaged and the rotational force of the worm wheel is transmitted to the drum via the leaf spring member and the engaging member, a large load is applied to the wire when the window glass is opened and closed and when the opening and closing is completed. Even if is applied, this load is transmitted from the drum to the worm wheel via the leaf spring member, and the shock shock of the leaf spring member reduces the torque shock to the drive means. Moreover, since the leaf spring member is provided on the inner peripheral side of the gear portion on the outer periphery of the worm wheel, the drum and the worm wheel can be arranged without any gap, and the dimension of the drive means in the vehicle width direction can be set. Can be miniaturized.

[Effect of device]

According to the vehicle window regulator of the present invention,
As described in detail in the above [Operation] section, a leaf spring member that is elastically deformable in the circumferential direction is provided in a portion on the inner circumferential side of the outer circumferential gear portion of the worm wheel, and a member that engages with this leaf spring member is provided. By providing the coupling member on the drum, it is possible to effectively reduce the torque shock, reduce the size of the drive means in the vehicle width direction, thin the door in the vehicle width direction, and widen the vehicle compartment.

Moreover, since an elastic member made of a leaf spring member is applied, it is advantageous in terms of downsizing and simplification of the configuration. Further, since the leaf spring member is integrally fixed to the worm wheel, the number of parts can be reduced.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

In the present embodiment, the window regulator of the vehicle of the present invention is applied to the left door of the vehicle, and the description will be given below with reference to the front, rear, left and right directions of the vehicle body.

As shown in FIG. 1, a main body portion 4 composed of an outer panel 2 and an inner panel 3 is formed in a lower portion of the door 1, and a pair of front and rear guide rails 5 in a substantially vertical direction are formed in the main body portion 4. Is provided, and a guide rail 5 is provided above the door 1.
A window frame portion 6 is formed so that the window glass 7 is mounted movably in the vertical direction via the guide rail 5 and the window frame portion 6, and is shown by a solid line by a window regulator 8 provided in the main body portion 4. It is opened and closed over the closed position and the open position shown in phantom.

The window regulator 8 will be described. As shown in FIG. 1, on the left side surface (outer side surface in the vehicle width direction) of the inner panel 3, there is provided a support plate 10 in a substantially vertical direction.
The drive unit 12 is fixed to the inner panel 3 in front of the support plate 10 by being mounted via the pair of support members 11.
A flat plate-like connecting plate 13 is provided at a position near the lower end of the window glass 7 facing the supporting plate 10 and a pair of front and rear fasteners 14 is provided.
The pulleys 15 and 16 are rotatably supported at both upper and lower end portions of the support plate 10 via left and right axial members, and one end portion of the upper pulley 15 is connected to the connecting plate 13.
Is connected to the drum (see FIG. 2) 17 of the drive unit 12 at the other end, and the lifting wire 18 is hooked as shown in the drawing. One end of the lower pulley 16 is connected to the connecting plate 13. A descending wire 19 which is connected and the other end of which is connected to the drum 17 is hung as shown in the drawing. Both wires 18 and 19 are guided to the drive unit 12 via a guide member 20 provided at the upper end of the support plate 10, and a curved outer tube provided between the drive unit 12 and the guide member 20. It is connected to the drum 17 through 21.

The drive unit 12 is for driving the wires 18 and 19 to open and close the window glass 7, and as shown in FIGS. 2 to 3, a support bracket is provided on the inner panel 3 in front of the support plate 10. A casing 23 is fixed via 22 and a shaft member 24 oriented in the left-right direction is disposed inside the casing 23, and both ends thereof are fixed to the casing 23. The drum 17 and the worm wheel are provided in the middle of the shaft member 24. A (corresponding to a drive member) 25 is rotatably supported by approaching in the left-right direction, an electric motor 26 is attached to a front portion of the casing 23, and a drive shaft 26a of the electric motor 26 meshes with the worm wheel 25. Worm gear 27 is fixed.

The worm wheel 25 has a boss portion 28 through which the shaft member 24 is inserted, a substantially annular rim portion 29 having worm teeth formed on the outer peripheral portion thereof, and four arm portions connecting the boss portion 28 and the rim portion 29. The elastic member 32, which is integrally formed with the boss portion 28 and the rim portion 29, is composed of a pair of symmetrical leaf springs 31.
Two sets are provided with different phases, and each elastic member 32 is mounted so as not to project in the axial direction of the worm wheel 25.

The worm wheel 25 is made of synthetic resin having excellent strength, and both end portions of the leaf spring 31 are integrally embedded and fixed in the worm wheel 25, and the engaging gap 31a is provided between the pair of leaf springs 31. Is provided, and the maximum width portion of the engagement gap 31a is the boss portion 28
It is located slightly offset to the rim portion 29 from the central portion between the rim portion 29 and the rim portion 29. However, the worm wheel 25 may be made of a metal material.

At the left end of the drum 17, a pair of engaging shafts 33 protruding leftward
Are fixed 180 degrees out of phase, each engagement shaft 33 is inserted and engaged in the maximum width portion of the engagement gap 31a between the corresponding pair of leaf springs 31, and the rotational force of the worm wheel 25 is an elastic member. It is transmitted to the drum 17 via the 32 and the engagement shaft 33.

As shown in FIG. 4, a pair of left and right spring recesses 34 are formed in the drum 17, and the wire recesses 18 and 19 are introduced into the spring recess 34. A substantially disk-shaped engaging member 35 is fixed to the end portion of 19, and a compression that biases the wires 18 and 19 into the spring recess 34 via the engaging member 35 in the spring recess 34. A spring 36 is provided, and the slack in the wires 18 and 19 is removed via the compression spring 36 and the engagement member 35.

Next, the operation of the window regulator 8 will be described.

The rotational force of the electric motor 26 is transmitted to the worm wheel 25 via the worm gear 27, and is transmitted from the worm wheel 25 to the drum 17 via the elastic member 32 and the engagement shaft 33.
In FIG. 3, when the drum 17 is rotationally driven in the clockwise direction, the descending wire 19 is wound around the drum 17 while the ascending wire 18 is unwound from the drum 17, and the window glass 7 is descended and driven to the open position. It When the drum 17 is rotated counterclockwise, the ascending wire 18 is wound around the drum 17 while the descending wire 19 is being paid out from the drum 17, and the window glass 7 is ascended to the closed position.

When the window glass 7 is driven to open or close, or when the window glass 7 is closed or opened, the wire
Although a large shock tension acts on 18 and 19, this tension is reduced by the buffering action of the elastic member 32, so that a large torque shock does not act on the worm wheel 25, the worm gear 27, and the electric motor 26.

Since the elastic member 32 is provided so as not to project in the axial direction of the worm wheel 25 and the worm wheel 25 and the drum 17 are arranged close to each other, the size of the drive unit 12 in the vehicle width direction is reduced and the door is opened. Can be made thinner.

When the wires 18 and 19 loosen, the excess wires 18 and 19 are pulled into the spring recess 34 by the compression spring 36,
A constant tension is always applied to the wires 18 and 19.

As described above, the elastic member 32 and the engagement shaft 33 having a simple structure are provided.
By transmitting the rotational force of the worm wheel 25 to the drum 17 via the motor, the torque shock can be effectively reduced, and the size of the drive unit 12 in the vehicle width direction can be reduced. It becomes possible to enlarge the room.

The compression spring 36 incorporated in the drum 17 can effectively remove the looseness of the wires 18 and 19 without increasing the size of the drive unit 12 in the vehicle width direction.

The elastic member 32 and the engaging shaft 33 may be provided in three sets each, or the worm wheel 25 and the elastic member 32 may be integrally formed of a synthetic resin material.

A rubber-like substantially fan-shaped elastic member may be fixed between the arm portions 30, and the engagement shaft 33 may be engaged with the substantially central portion of the elastic member.

[Brief description of drawings]

1 to 4 of the drawings show an embodiment of the present invention, in which FIG. 1 is a side view of a notched part of a door, and FIG. 2 is FIG.
II-II sectional view, FIG. 3 is FIG. 2 III-III sectional view, FIG. 4 is FIG. 2 IV-IV sectional view, and FIG. 5 is equivalent to FIG. 2 of the conventional window regulator. It is a figure. 1 ... Door, 7 ... Window glass, 8 ... Window regulator, 12 ... Drive unit, 15/16 ... Pulley, 17 ...
Drum, 18 …… Climbing wire, 19 …… Climbing wire, 25
...... Worm wheel, 32 ...... Elastic member, 33 ...... Engagement shaft.

Claims (1)

(57) [Scope of utility model registration request] 1. A wire connected to a window glass, a drum for driving the wire to move the window glass up and down, and a worm wheel disposed on one end side in the axial direction of the drum. A window regulator for a vehicle, comprising a drive means for rotationally driving a drum, wherein the worm wheel is elastically deformable in the circumferential direction and integrally fixed to the worm wheel at a portion on the inner peripheral side of the gear portion on the outer periphery of the worm wheel. A vehicle window regulator, characterized in that a leaf spring member is provided, and the drum is provided with an engaging member that engages the leaf spring member and transmits a rotational force from the worm wheel to the drum.